Be aware that hotfixes were built for specific product versions, and must not be installed on other product versions or in combination with other hotfixes. If you have already installed any other hotfixes on a certain Sitecore instance, send a request for a compatibility check to Sitecore Support.

Note that you must extract the ZIP-file contents to locate installation instructions and the related files inside it. The hotfixes must be installed on a CM instance and then synced with other instances using the regular development practices.